EP0246936A1 - Kokillen aus Gusseisen, insbesondere Kokillen für die Glasindustrie, mit veränderlichem Gefüge innerhalb der Wände - Google Patents

Kokillen aus Gusseisen, insbesondere Kokillen für die Glasindustrie, mit veränderlichem Gefüge innerhalb der Wände Download PDF

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Publication number
EP0246936A1
EP0246936A1 EP87400852A EP87400852A EP0246936A1 EP 0246936 A1 EP0246936 A1 EP 0246936A1 EP 87400852 A EP87400852 A EP 87400852A EP 87400852 A EP87400852 A EP 87400852A EP 0246936 A1 EP0246936 A1 EP 0246936A1
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EP
European Patent Office
Prior art keywords
cast iron
cast
nodular
vermicular
spheroidal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87400852A
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English (en)
French (fr)
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EP0246936B1 (de
Inventor
Jean-Claude Chalon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anciens Caffier & Barreau Ets
Original Assignee
Anciens Caffier & Barreau Ets
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Publication date
Application filed by Anciens Caffier & Barreau Ets filed Critical Anciens Caffier & Barreau Ets
Priority to AT87400852T priority Critical patent/ATE61635T1/de
Publication of EP0246936A1 publication Critical patent/EP0246936A1/de
Application granted granted Critical
Publication of EP0246936B1 publication Critical patent/EP0246936B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/48—Use of materials for the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/04—Cast-iron alloys containing spheroidal graphite

Definitions

  • the present invention relates to cast iron parts having a structure variable in their thickness, said parts being in particular glassware molds.
  • the cast iron (alloys based on iron and carbon) currently used belong to two large families, according to the appearance of the graphite particles which they contain, namely the lamellar cast iron and the nodular cast iron of which the family includes as term the most completed spheroidal cast iron excluding malleable cast iron.
  • the properties of the fonts of each of these families are well known.
  • vermicular molds have in their structure, both on the surface and in their mass, a graphite in the form of a mixture of vermicles and nodules and / or vermicles and lamellae, that is to say three to both in proportions that are not very stable and not very reproducible. Hence their difficult and undesired use until now in industrial application.
  • the invention therefore relates to cast iron castings of which one or more surfaces, partially or totally, are made of nodular cast iron, the rest of the piece on its other surfaces and in its mass being made wholly or almost completely of vermicular cast iron.
  • the "nodular" part of the cast iron part may comprise, very generally on its surface, a part of spheroidal cast iron. It has been proven that the existence of this spheroidal cast iron (that is to say more precisely of a nodular cast iron which comprises at least 9O% of spheroidal cast iron) allows obtaining the best results.
  • the presence of nodular and more precisely spheroidal cast iron, on a part of the surface of the part makes it possible to benefit completely at this surface from the interesting properties of cast iron with nodular (or spheroidal) structure, in particular with regard to the ability polishing and suitability for welding and metallization.
  • the thickness of the cast iron with a completely nodular or spheroidal structure can, depending on the casting conditions, be approximately 5 to 25 mm thick.
  • the cast iron When the material is of relatively small thickness, the cast iron may not become completely vermicular but as soon as the material is of appreciable thickness (for example 30 to 40 mm), the presence is observed in the vicinity of the surface of said material which is the most distant from the face of nodular cast iron, of a totally or almost totally vermicular cast iron.
  • the process for the preparation of cast iron materials with variable structure according to the invention is essentially characterized in that molten iron, which receives the known catalysts and additives in a quantity necessary and sufficient to allow the organization of variable structures sought for nodule and vermicle ), is poured into a mold, at least one of the walls of which is of the cooler type.
  • these catalysts and additives are for example based on ferro silico magnesium - apparently acting to promote germination - and titanium apparently acting to counteract the effect of said germs. It should be noted that other catalysts and additives can also trigger the desired germination, in particular the use of cerium and rare earths in appropriate doses.
  • cooler type wall is understood to mean a wall constituted by a material which conducts heat (which therefore allows the heat contained in the cast iron to be removed ); thus, it is sufficient according to the invention to replace the sand wall (generally used for making molds to receive the cast iron) by a cast iron wall so that, in contact with this wall, the cast iron part obtained after demolding has a layer of "nodular and spheroidal" cast iron in its part in contact and close to the cooler, and has an increasingly vermicular structure in its parts more and more distant from the cooler, which is the characteristic of the invention.
  • said cooler type wall can constitute one or more of the walls (or only parts of said walls) of the foundry mold.
  • US Pat. No. 3,349,831 describes composite cast irons and molded parts based on these cast irons close to those of the present invention.
  • An essential difference between what is described in said US patent and what is described in the present invention is that, in the US patent, the cast iron which is used is a cast iron of lamellar type containing certain constituents which can give rise, locally, to a nodular type cast iron, whereas, in the present application, a vermicular type cast iron is used containing the constituents which can give rise, locally, to a nodular type cast iron.
  • the parts molded according to the present invention can have very varied applications, all those where one will seek both the advantageous properties (in particular of thermal conductivity) of the vermicular cast iron which constitutes the mass of the part and the specific properties (the hardness, tensile strength, elongation%, elastic limit, ability to weld and metallize, ease of polishing, ease of engraving to cut complicated shapes) of nodular cast iron on the surface or preferably spheroidal.
  • glassware molds constitute, in the current state of knowledge, the preferred application of cast iron parts, the material of which has the structure described above.
  • the invention therefore relates, as new products, to said glassware molds.
  • variable-structure fonts of the present invention for the manufacture of glassware molds (because said fonts compared to spheroidal fonts allow faster heat removal and have improved mechanical properties compared to lamellar fonts ) provides significant benefits.
  • a glassware mold was produced, a cross section of which is shown in FIG. 1.
  • the cast iron is poured into a sand "box" which includes a metal insert used as a cooling element.
  • composition of the font used can be, for example, the following:
  • the cooler (1) has a radius r of 35 mm, and the molded part (2) a radius R of 75 mm; the weight of the molded part finished being 12 kg, a cooler weighing 4 kg was used; the glassware mold obtained after demoulding has an almost entirely spheroidal cast iron structure on its surface (3) which has been in contact with the cooler and has a structure with 90% vermicular in the vicinity of its surface (4).

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Mold Materials And Core Materials (AREA)
  • Dental Prosthetics (AREA)
  • Dental Preparations (AREA)
  • Braking Arrangements (AREA)
  • Glass Compositions (AREA)
  • Detergent Compositions (AREA)
  • Soft Magnetic Materials (AREA)
  • Table Devices Or Equipment (AREA)
EP8787400852A 1986-04-17 1987-04-15 Kokillen aus Gusseisen, insbesondere Kokillen für die Glasindustrie, mit veränderlichem Gefüge innerhalb der Wände Expired - Lifetime EP0246936B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87400852T ATE61635T1 (de) 1986-04-17 1987-04-15 Kokillen aus gusseisen, insbesondere kokillen fuer die glasindustrie, mit veraenderlichem gefuege innerhalb der waende.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8605545A FR2597376B1 (fr) 1986-04-17 1986-04-17 Pieces moulees en fonte, notamment moules de verrerie, a structure de fonte variable dans l'epaisseur des pieces
FR8605545 1986-04-17

Publications (2)

Publication Number Publication Date
EP0246936A1 true EP0246936A1 (de) 1987-11-25
EP0246936B1 EP0246936B1 (de) 1991-03-13

Family

ID=9334345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP8787400852A Expired - Lifetime EP0246936B1 (de) 1986-04-17 1987-04-15 Kokillen aus Gusseisen, insbesondere Kokillen für die Glasindustrie, mit veränderlichem Gefüge innerhalb der Wände

Country Status (10)

Country Link
EP (1) EP0246936B1 (de)
JP (1) JPH0717985B2 (de)
AT (1) ATE61635T1 (de)
CA (1) CA1326369C (de)
DE (1) DE3768555D1 (de)
ES (1) ES2022389B3 (de)
FR (1) FR2597376B1 (de)
GR (1) GR3001973T3 (de)
MX (1) MX168642B (de)
PT (1) PT84696B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660644A1 (fr) * 1990-04-06 1991-10-11 Centre Nat Rech Scient Nouveau compose du systeme k-nb-si-o et ses derives, leur procede de synthese et leurs applications notamment en optique.
EP0546236A2 (de) * 1991-12-09 1993-06-16 SHIBA R & D CO., LTD. Form zum Herstellen eines Glasgegenstandes
FR2685914A1 (fr) * 1992-01-08 1993-07-09 Avisa Nouvelle fonte pour moule de verrerie, moule en faisant application et procede d'obtention d'un tel moule.
CN109207881A (zh) * 2017-06-30 2019-01-15 宜兴市韦德同机械科技有限公司 一种颗粒发射装置用伸缩连接座材料
CN109306429A (zh) * 2017-07-28 2019-02-05 宜兴市韦德同机械科技有限公司 一种电力杆用弯钩材料
CN109306427A (zh) * 2017-07-28 2019-02-05 宜兴市韦德同机械科技有限公司 一种电力杆用底座材料
CN109423566A (zh) * 2017-08-29 2019-03-05 宜兴市韦德同机械科技有限公司 一种晶体生长炉用炉座材料

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725729B1 (fr) * 1994-10-13 1997-01-10 Delca France Sarl Materiau metallique pour la realisation d'un corps d'outil d'usinage et procede en vue de la realisation d'un corps d'outil au moyen de ce materiau
FR3051852B1 (fr) * 2016-05-24 2018-06-15 Pfeiffer Vacuum Stator, arbre rotatif, pompe a vide de type seche et procedes de fabrication associes
CN114351039A (zh) * 2022-01-14 2022-04-15 常熟市精工模具制造有限公司 一种蠕墨铸铁玻璃模具及其制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349831A (en) * 1965-01-22 1967-10-31 William H Moore Process of producing a cast member having a varying graphite structure
US3421886A (en) * 1965-05-04 1969-01-14 Int Nickel Co Cast iron with at least 50% of the graphite in vermicular form and a process for making same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI56699C (fi) * 1976-10-05 1980-03-10 Kymin Oy Kymmene Ab Maskinelement av segjaern foer kraftoeverfoering medelst friktion
FI56700C (fi) * 1976-10-05 1980-03-10 Kymin Oy Kymmene Ab Mot abrasiv noetning bestaendigt maskinelement av segjaern foer behandling av mineraler
JPS579852A (en) * 1980-06-19 1982-01-19 Takaoka Kogyo Kk Cast iron product with partially different graphite form and its manufacture
JPS6121432A (ja) * 1984-07-09 1986-01-30 Hitachi Metals Ltd 複合ブレ−キ用摺動部材

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349831A (en) * 1965-01-22 1967-10-31 William H Moore Process of producing a cast member having a varying graphite structure
US3421886A (en) * 1965-05-04 1969-01-14 Int Nickel Co Cast iron with at least 50% of the graphite in vermicular form and a process for making same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SPRECHSAAL, Ceramic Glass Cement, vol. 117, no. 9, septembre 1984, pages 756-758,760,762,763, Verlag des Sprechsaal Müller und Schmidt, Coburg, DE; W. BUTZ: "Anforderungen an Gusseisen für den Glasformenbau und seine Herstellung" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660644A1 (fr) * 1990-04-06 1991-10-11 Centre Nat Rech Scient Nouveau compose du systeme k-nb-si-o et ses derives, leur procede de synthese et leurs applications notamment en optique.
EP0546236A2 (de) * 1991-12-09 1993-06-16 SHIBA R & D CO., LTD. Form zum Herstellen eines Glasgegenstandes
EP0546236A3 (en) * 1991-12-09 1993-11-24 Shiba R & D Co Ltd Mold for forming vessel made of glass
FR2685914A1 (fr) * 1992-01-08 1993-07-09 Avisa Nouvelle fonte pour moule de verrerie, moule en faisant application et procede d'obtention d'un tel moule.
CN109207881A (zh) * 2017-06-30 2019-01-15 宜兴市韦德同机械科技有限公司 一种颗粒发射装置用伸缩连接座材料
CN109306429A (zh) * 2017-07-28 2019-02-05 宜兴市韦德同机械科技有限公司 一种电力杆用弯钩材料
CN109306427A (zh) * 2017-07-28 2019-02-05 宜兴市韦德同机械科技有限公司 一种电力杆用底座材料
CN109423566A (zh) * 2017-08-29 2019-03-05 宜兴市韦德同机械科技有限公司 一种晶体生长炉用炉座材料

Also Published As

Publication number Publication date
PT84696A (fr) 1987-05-01
FR2597376B1 (fr) 1988-07-29
JPS6318035A (ja) 1988-01-25
JPH0717985B2 (ja) 1995-03-01
PT84696B (pt) 1989-11-30
ATE61635T1 (de) 1991-03-15
ES2022389B3 (es) 1991-12-01
EP0246936B1 (de) 1991-03-13
CA1326369C (en) 1994-01-25
MX168642B (es) 1993-06-02
DE3768555D1 (de) 1991-04-18
FR2597376A1 (fr) 1987-10-23
GR3001973T3 (en) 1992-11-23

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